Pipe grip



May 15, 1923.

1,455,612 c. M. HEETER PIPE GRIP Filed'June 8, 1921 INVENTOR.

CHARLES M. nEETEn, or

PIPE- Application filed June 8,

T 0 all whom it may concern;

Be it known that I, CHARLES M. HEETER, residing at Butler, ButlerCounty, Pennsylvania, have invented a new and useful Improvement in PipeGrips, of which the following is a. full, clear, and exact description.

The present invention relates broadly'to grips, and more particularly topipe grlps adapted for use in connection with pipes, tubes, and casingsutilized in well constructions.

An important object of the present invention is to provide a pipe griphaving a main rigid body portion provided with a plurality ofindependent gripping sections mounted thereon.

A further object of the present invention is to provide a. grip of thecharacter described, having a body portion presenting seats extending inangular relation one to the other and adapted to receive independentgripping sections.

Another object of the invention is to provide a curved body portionprovided with gripping sections having their gripping faces extending atan oblique'angle and spaced to provide a pocket therebetween.

A still further object ofthe invention is to provide a device of thecharacter de scribed, in which the body portion is provided with an eyeon one end thereof and a horn on the other end thereof adapted tocooperate with a gripping cable.

The foregoing and other objects of the present invention, together withtheir attendant advantages, will be apparent as the invention becomesbetter understood by ref erence to the accompanying specification anddrawings forming a partthereof, it being premised that changes may bemade in the various details and manner of operation within the scope ofthe appended claim without departing from the spirit of the invention.

Figure 1 is a top plan view of the device illustrated in operativeposition;

Figure 2 is a face view of the device having one of the grippingsections removed therefrom; and

Figure 3 is a perspective view of the gripping sections.

Referring more particularly to the drawings, there is illustrated a pipegrip, which preferably comprises a rigid main body portion 2,constructed in one piece by casting or otherwise, as found convenient.Adjaone of titans reins.

BUTLER, PENNSYLVANIA.

GRIP.

1921. Serial No. 476,056.

cent oneend'of the body portion there is formed an eye 8, whileadjacent. the other end there is provided a horn 4. It will be apparentthat one end of the gripping cable is adapted to be secured in the eye3, as is customary in devices of this general nature; while the oppositeend of the cable is passed around the pipe 6 to be operated upon andthen over the horn 4, enabling. the pipe grip to be firmly held inoperative position.

According to the preferred form of the invention, the main body portionis curved intermediate the eye 3 and the horn 4, to provide seats 7 and8, respectively, extending at an oblique angle one to the other.Adjacent one end of each of the seats is formed a pocket 9 having oneflat end wall 10 and a curved end wall 11. The seats and pocketsareadapted to receive gripping sections 12, each having a series ofgripping teeth 13 directed in the same general direction and providedwith projections 14 each having a flat wall and a curved wall conformingto the pockets before described. Due to this construction, it isimpossible to insert the gripping sections with the gripping teethextending in the wrong direction, and the curved surfaces of the pocketsand projections cooperate to guide the gripping sections into suchposition that openings 15 in the projections are brought into alinementwith openings 16 in the body portion 2, whereby rivets or bolts may bepassed therethrough for locking the sections in position.

In order to firmly hold these gripping sections, the body portion may beprovided adjacent each of its ends, with shoulders 17 adapted tocooperate with the ends of the gripping sections.

In the preferred embodiment of the invention, these gripping sectionsare of generally rectangular shape, with body portions of substantiallyuniform thickness whereby the gripping faces thereof extendsubstantially parallel to the seats 7 and 8 and form an obtuse angle.These sections are of such length that a pocket 18 is formed between theinner ends thereof and between the curved face 19 of the body memberinto which a portion of the periphery of the object being operated uponis adapted to extend.

It has heretofore been proposed to construct pipe grips of a pluralityof pivoted sections, but such devices have been more or .lessobjectionable in actual use due to the tendency of the same to slideoutwardly from the periphery of the pipe being gripped,

particularly when used in connectionwith pipes of comparatively smalldiameters. With a construction such as illustrated herein, thisobjectionable tendency is overcome by the provision of a one-piece-rigidbody portion which is curved in such manner that it'is adapted tocooperate with pipes of a plurality of difler'ent sizes within the rangefrom minimum to maximum, as clearly illustrated in the drawings. Thetighter the cable 5 is drawn around the pipe 6, the tighter the grippingteeth 13 will be drawn into engagement with the periphery of the pipe.This action will not be accompanied by any tendency of the body portionto buckle and move the gripping teeth outwardly away from the surfacebeing gripped, as is the case with sectional grips.

The advantages of the present invention arise from the provision of arigid body portion having gripping section s extending at an obtuseangle one to the other.

Still -further advantages of the invention arise from the means forattaching the gripping sections in position whereby reversal thereof isprevented and accurate positioning is insured.

I claim: I

A device of the character described, comprising a rigid body portionhaving a plurality of gripping sections maintained in fixed relationthereon, each gripping section having a plurality of gripping teeth in0perative position, there being an eye adjacent set my hand.

- CHARLES M. HEETER.

